Carbureter.



Patented July 10, 191?.

msmww WILLIAM H. ROHR, 0F ZPOBTLMID, MAINE.

GAEBUBETEB.

Specification of Letters Patent.

Patented duly ill), rear.

Application filed )lpril 23, 1915. Serial No. 23,486.

T 0 all whom it may concern:

Be it known that I, WILLIAM l-LRonn, a citizen of the United States, residing at Portland, in the county of Cumberland, State of Maine, have invented certain new and useful Improvements in. Carburetors for Explosive-Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will on able others skilled in the art to which it appertains to make and use the same.

This invention relates to carbureters for explosive engines.

The object of the invention resides in the provision of a carburetor which will be exceedingly simple in construction, economical with respect to the consumption of gasolene, and extremely flexible.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly pointed out in the appended claim.

In describing the invention in detail reference will be had to the accompanying v drawings wherein like characters of reference denote corresponding parts in the several views, and in which- Figure 1 is a view in elevation of a car bureter constructed in accordance with the invention;

Fig. 2, a vertical section of same; and

Fig. 3, a section on the line 3-3 of Fig. 1.

Referring to the drawings the carburetor is shown as comprising a casing A which includes a gasolene reservoir 10 provided with a gasolene intake opening 11 adapted to be closed by a valve 12, said valve being controlled by a fioat13 to maintain the gasolene in the reservoir 10 at a predetermined level all in the usual and. well known manner. Disposed within the reservoir 10 is a cylindrical partition 14 which is extended beyond both the top and bottom of the reservoir and terminates at its upper end in a securing flange 15 whereby the carbureter may be attached to the manifold of an explosive engine. The space within the cylindrical partition 14 is divided by a longitudinal partition 15 into air passages 16 and 17, the former having considerably less cross sectional area than the latter. The upper end of the passage 17 is closed as. at 18, while the partition 15 is provided with an opening 19 controlled by a spring valve 20. Mounted in the extension of the partition 14 above the upper end of the passage 17 is a throttle valve 21. The Bow of gasolene from the reservoir 10 to the passage 16 is controlled by a needle valve 22, while the flow of gasolene from the reservoir 10 to the passage 17 is controlled by a needle valve 23.

In the use of a carburetor constructed as described it will be apparent that when the vengine is throttled down or running on low speed the necessary quantity of air can be drawn through the passage 16 and under such conditions the valve 20 will remain closed so that no air will travel through the passage 17. When the throttle valve 21 is opened the required quantity of air cannot get through the passage 16 and as a result the suction. of the engine will open the valve 20 and permit the requisite quantity of air in addition to that supplied through the .passage 16 to pass through the passage 17 end of the passage having the greater cross sectional area and which is adjacent said opening being closed, a spring valve operatively mounted in the casing for axial movement transversely of the passages and normally closing said opening, and means for supplying liquid fuel from the fuel cham her to each of said air passages. v

In testimony whereof, I affix my signature, in the presence of two witnesses.

WILLIAM H. ROI-IR.

Witnesses:

A. L. Lownrm, ROBERT W. DE Worm. 

